You have the option to deactivate your Clinked account and subsequently erase your data permanently. To do so, navigate to your Account Settings and select the Package section. Within your settings, you'll find the 'De-Activate Account' choice:
Before proceeding with the permanent deletion of your data, you'll be requested to provide a reason for deactivating your account:
Here, you can either re-activate your account or permanently delete your account, meaning that your data will be deleted: